JFreeSVG only creates SVG (by mapping Graphics2D API calls to the equivalent SVG output) but doesn't have the ability to parse and render SVG in graphical format (Apache Batik can do the latter). Conversion of SVG to PDF would require the latter (parsing and rendering)...so JFreeSVG won't help you.

If you are using JFreeSVG to create your output though, you can redirect the same Graphics2D API calls to OrsonPDF to create PDF files. From your question, though, I don't think that is your scenario.